Method Detail

• public static long getLastModified(URL url)

  Last-modified time of url for source-freshness checks used by GroovyClassLoader and ClassNodeResolver.

  file: URLs use File.lastModified because URLConnection.getLastModified often reports -1. The path mapping includes the historical Windows form {@code file://c|/...} where | stood for :. Other protocols use getUncachedLastModified(URL).

  throws:

  IOException if a non-file: URL cannot be opened

  Parameters:

  url - the source URL

  Returns:

  the last-modified time in milliseconds since the epoch, or 0 if it is not known

• public static long getUncachedLastModified(URL url)

  Returns URLConnection.getLastModified for url without caching the connection, then closes it.

  jar: URLs otherwise keep a cached JarFile open after URLConnection.getInputStream is closed, which on Windows locks the JAR until the JVM exits. A failure to open the stream (missing JAR entry, unreachable URL) is propagated so callers can treat the source as unreadable; a failure to close after a successful open is ignored because last-modified was already obtained.

  throws:

  IOException if the connection or stream cannot be opened

  Parameters:

  url - the URL whose last-modified time is required

  Returns:

  the last-modified time in milliseconds since the epoch, or 0 if it is not known

• public static InputStream openUncachedStream(URL url)

  Opens an InputStream reading from the given URL without caching the connection. This prevents file descriptor leaks when reading from file-system URLs.

  Parameters:

  url - the URL to connect to

  Returns:

  an input stream reading from the URL connection